1,3-Dioxolane synthesis
- Product Name:1,3-Dioxolane
- CAS Number:646-06-0
- Molecular formula:C3H6O2
- Molecular Weight:74.08
50-00-0
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Yield:646-06-0 95.4%
Reaction Conditions:
with C13H22N4O6S2(2+)*2CF3O3S(1-) in water at 130; for 2 h;Reagent/catalyst;
Steps:
2 On proportional 2
To the round bottom flask is added 103.8 g ethylene glycol, 45.9 g paraformaldehyde and 14.2 g deionized water. Then, round bottom flask is added 8.2 g concentrated sulfuric acid as a catalyst (catalyst for ethylene glycol and paraformaldehyde of the total mass of 5.48 wt %). Through the magnetic stirrer, reflux while stirring, heated to 130 °C reaction 2 hours. The reaction product by atmospheric distillation, collecting 71 - 75 °C fraction, through the salting out with sodium chloride and molecular sieve after dehydration, get the refined 1, 3 - dioxolo. The conversion rate of the glycol 82.1%, 1, 3 - dioxolo yield of 86.4%, lower than example 6.
References:
CN109721582,2019,A Location in patent:Paragraph 0085; 0086-0090
201230-82-2
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646-06-0
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646-06-0
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50-00-0
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646-06-0
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